The OBD port is getting no power. The fuse for the cigarette lighters is still good.
Aug 12, 2018 at 2:19 PM
OBDport has no power
2006 BUICK LA CROSSE
DENALIWONTSTOP
- MEMBER
- 6 POSTS
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ASEMASTER6371
- ✓ASE Certified Mechanic
- 52,796 POSTS
Good afternoon.
The DLC is powered by its own fuse in the inside fuse block in the car. Check for the fuse block on the end of the dash when you open the door. You have to pull off a cover.
I attached a wiring diagram for you to view on what it says for the fuse.
What concerns me is why it failed. Fuses blow for a reason. If you do not find the reason it will continue to fail.
Roy
The DLC is powered by its own fuse in the inside fuse block in the car. Check for the fuse block on the end of the dash when you open the door. You have to pull off a cover.
I attached a wiring diagram for you to view on what it says for the fuse.
What concerns me is why it failed. Fuses blow for a reason. If you do not find the reason it will continue to fail.
Roy
Image (Click to enlarge)
Professional Diagram for 2CarPros Members
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Click here to log in and view diagram.
Aug 12, 2018 at 3:32 PM
I have a different diagram for the fuse box on the end of the dash for a 2006 Buick LaCrosse.
Aug 13, 2018 at 2:59 AM
I attached pictures of the diagram and the fuse box. Thank you.
Images (Click to enlarge)
Aug 13, 2018 at 3:01 AM
ASEMASTER6371
- ✓ASE Certified Mechanic
- 52,796 POSTS
Did you use a test light and verify power to fuses and power on both sides of the fuses?
Roy
Roy
Aug 13, 2018 at 3:23 AM
Yes sir, even put a new one in it.
Aug 13, 2018 at 3:35 AM
ASEMASTER6371
- ✓ASE Certified Mechanic
- 52,796 POSTS
New one in what? Did you check for power on pin 16 of the DLC?
Image (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Click here to log in and view diagram.
Aug 13, 2018 at 3:39 AM
New fuse under the hood and yes sir.
Aug 13, 2018 at 3:54 AM
ASEMASTER6371
- ✓ASE Certified Mechanic
- 52,796 POSTS
The fuse is not under the hood it is in the interior fuse block as listed.
Did you verify power on all the fuses on both sides?
Roy
Did you verify power on all the fuses on both sides?
Roy
Aug 13, 2018 at 3:58 AM
I changed the cigarette lighter fuse under the hood, but I do not have the DLC fuse on the diagram.
Aug 13, 2018 at 6:51 AM
ASEMASTER6371
- ✓ASE Certified Mechanic
- 52,796 POSTS
Again, the cigarette lighter fuse is not the fuse.
It is the OnStar fuse in the interior fuse block as indicated in the diagram.
If you have power on both sides then you have a wiring issue between the fuse block and the DLC.
Roy
It is the OnStar fuse in the interior fuse block as indicated in the diagram.
If you have power on both sides then you have a wiring issue between the fuse block and the DLC.
Roy
Aug 13, 2018 at 7:53 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.